Q)
(chatquestion)...(4) 1025 kg/m3
The binding energy of an electron in ground state
of He is equal to 24.6 eV. The energy that must
be given to the atom so that second electron can
be removed is
(1) 49.2 eV
(2) 54.4 eV
(3) 79 eV
(4) 84 eV
Which of the following has the mass closest to
1 Answer
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